Question

Asked Nov 15, 2019

45 views

THIS NOT GRADED ASSIGIMENT , IT IS AN OLD EXAM QUESTION.

Step 1

(a)

Let is the variance assembly time for men and the variance assembly time for women.

The hypotheses are given below:

Step 2

Step-by-step procedure to obtain the test statistic and p-value using MINITAB software:

Step 1: Choose **Stat > Basic Statistics > 2 Variance**.

Step 2: Under **Data**, choose **Sample standard deviation**.

Step 3: In First, enter **25** under **Sample size**.

Step 4: In First, enter **0.98** under **Standard deviation**

Step 5: In Second, enter **21** under **Sample size**.

Step 6: In Second, enter **1.02** under **Standard deviation**

Step 7: Check **Options**, enter **Confidence level** as **98.0**.

Step 8: In **Hypothesized ratio** **Sample 1 variance/ Sample 2 variance**

Step 9: Choose **not equal **in **alternative**.

Step 10: Click **OK** in all dialog boxes.

Output obtained using MINITAB software is given below:

Step 3

From the output, the test statistic **0.92** and p-value is **0.843**.

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